Answer / manasa

Zener diode is a semiconductor device which allow the flow of current in opposite direction when it reaches the enough voltage

why the earth pin is thicker than other pins in a plug? If it is for reducing resistance, then why the copper earth wire is not so thick as earth pin of socket?

5 Answers   Omax,

---

if three phase supply is given to single phase transformer, what will happen?

3 Answers  

---

Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

6 Answers   NTPC,

---

If the t/f capacity is 500KvA then what is Amps ratting of the main breaker.

5 Answers  

---

can motors working at parallel operation like D.G set and transformers? It means asking about two motors coupled with same load???

1 Answers  

---

why the alternator rating in kva generator in kw.

2 Answers  

---

why excitor coil of an alternator can fail

3 Answers  

---

FOR ELECTRICAL TRANSMISSION TOWER WHAT SHOULD BE THE MINIMUM HEIGHT FROM THE GROUND? AND WHAT SHOULD BE THE DISTANCE BETWEEN THE TWO CONDUCTOR?

1 Answers  

---

When and where resistance earthing is used ? How to calculate the time constant for earth fault

0 Answers  

---

Why the efficiency of generator is more than motor in swinburne's test

0 Answers  

---

What is transient response?

0 Answers  

---

What is motor type DG starter

5 Answers   EFS, HDFC,

---